fix: categories filter is multiple now

internal/services/news/get_all.go

@@ -5,16 +5,15 @@ import (
 	"strings"
 )
 
-func (i *impl) GetAll(categoryCode, tagCodes string) ([]newsdomain.News, error) {
-	var (
-		category string
-		err      error
-	)
+func (i *impl) GetAll(categoriesCode, tagCodes string) ([]newsdomain.News, error) {
+	var err error
 
+	categories := []string{}
 	tags := []string{}
 	news := []newsdomain.News{}
 
 	tagCodeArr := strings.Split(tagCodes, " ")
+	categoryCodeArr := strings.Split(categoriesCode, " ")
 
 	if len(tagCodeArr) > 0 && tagCodeArr[0] != "" {
 		tags, err = i.tagRepo.GetIDsByCodes(tagCodeArr)
@@ -27,20 +26,20 @@ func (i *impl) GetAll(categoryCode, tagCodes string) ([]newsdomain.News, error)
 		}
 	}
 
-	if categoryCode != "" {
-		category, err = i.categoryRepo.GetIDByCode(categoryCode)
+	if len(categoryCodeArr) > 0 && categoryCodeArr[0] != "" {
+		categories, err = i.categoryRepo.GetIDByCode(categoryCodeArr)
 		if err != nil {
 			return news, err
 		}
 
-		if category == "" {
+		if len(categories) < 1 {
 			return news, nil
 		}
 	}
 
 	filter := newsdomain.NewsFilter{
 		Tags:     tags,
-		Category: category,
+		Category: categories,
 	}
 	return i.newsRepo.GetAll(filter)
 }